Suppose a population consisting of al, bob, curt, doris, and ella, receive annual incomes of $5000, $2500, $1250, $750, and $500, respectively. what percentage of total income is received by the richest quintile?

John novosel was employed by nationwide insurance company for fifteen years. novosel had been a model employee and, at the time of discharge, was a district claims manager and a candidate for the position of division claims manager. during novosel's fifteenth year of employment, nationwide circulated a memorandum requesting the participation of all employees in an effort to lobby the pennsylvania state legislature for the passage of a certain bill before the body. novosel, who had privately indicated his disagreement with nationwide's political views, refused to lend his support to the lobby, and his employment with nationwide was terminated. novosel brought two separate claims against nationwide, arguing, first, that his discharge for refusing to lobby the state legislature on behalf of nationwide constituted the tort of wrongful discharge in that it was arbitrary, malicious, and contrary to public policy. novosel also contended that nationwide breached an implied contract guaranteeing continued employment so long as his job performance was satisfactory. what decision as to each claim?

Acompany is developing a new high­performance wax for cross country ski racing. in order to justify the price marketingwants, the wax needs to be very fast. specifically, the mean time to finish their standard test course should be less thanseconds for a former olympic champion. to test it, the champion will ski the course 8 times. the champion's times(selected at random) are 59.9 61.9 48.8 52.2 46.6 45.3 50.6 and 41.1 seconds to complete the test course. complete parts a and b below.a) should they market the wax? assume the assumptions and conditions for appropriate hypothesis testing are metfor the sample.assume=0.05. what are the null and alternative hypotheses? choose the correct answer below.b) suppose they decide not to market the wax after the test, but it turns out that the wax really does lower the champion'saverage time to less thanseconds. what kind of error have they made? explain the impact to the company of such anerror.

The returns on the common stock of maynard cosmetic specialties are quite cyclical. in a boom economy, the stock is expected to return 22 percent in comparison to 9 percent in a normal economy and a negative 14 percent in a recessionary period. the probability of a recession is 35 percent while the probability of a boom is 10 percent. what is the standard deviation of the returns on this stock?